You have me for most of those but... Trigun? Really? That mediocre piece of garbage? It had eight great initial episodes and then devolved into low-budget tripe. You may as well list Gokudo instead for all the fail it was.

I understand that there´s a pretty big divide betwen America, EU and Japan when it comes to what should be considered "essential" wiewing, but any such list missing Lupin III, Leiji matsumoto, Go nagai, Ozamu Tetsuka and Rumiko takahashi is severly lacking.

The people that contribute to these lists can't be called "otaku". They're just kids who think they know things. Otherwise they wouldn't pretend the stuff on the lists represents weighty concepts like "anime you should know"